[Event "?"] [Site "squareoffnow.com"] [Date "2024.04.28"] [Round "?"] [White "Ulf Buschmann"] [Black "Square Off"] [Result "0-1"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "2700+10"] [ECO "C40"] [Opening "Gunderam Defense"] [Termination "Unknown"] [Annotator "lichess.org"] 1. e4 e5 2. Nf3 Qe7?! { (0.20 → 0.82) Inaccuracy. Nc6 was best. } { C40 Gunderam Defense } (2... Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1) 3. d4 Nf6 4. Bd3 exd4 5. Nbd2?! { (1.12 → 0.56) Inaccuracy. O-O was best. } (5. O-O d6 6. Nxd4 Nc6 7. Nxc6 bxc6 8. Nc3 Nd7 9. Be3 g5 10. Qd2 g4 11. Bg5 f6) 5... c5 6. b3? { (0.78 → -0.45) Mistake. O-O was best. } (6. O-O d6 7. c3 Nc6 8. cxd4 cxd4 9. Re1 Qc7 10. h3 Be6 11. Nb3 Bxb3 12. Qxb3 Be7) 6... Nd5 7. Bb2? { (0.00 → -1.18) Mistake. O-O was best. } (7. O-O Nc3 8. Qe1 Nc6 9. Nc4 b5 10. Ne3 Nb4 11. Nf5 Nxd3 12. cxd3 Qf6 13. b4 h6) 7... d6?! { (-1.18 → -0.18) Inaccuracy. Nf4 was best. } (7... Nf4 8. O-O) 8. O-O Nf4 9. Bc4?! { (-0.32 → -0.96) Inaccuracy. Nc4 was best. } (9. Nc4 Nc6) 9... Nc6 10. a3?! { (-0.89 → -1.47) Inaccuracy. c3 was best. } (10. c3 g5) 10... g5 11. b4?! { (-1.38 → -2.07) Inaccuracy. c3 was best. } (11. c3 Bg7 12. cxd4 g4 13. Ne1 h5 14. Nc2 Be6 15. d5 Bxb2 16. dxc6 bxc6 17. Bxe6 Qxe6) 11... h5?! { (-2.07 → -1.27) Inaccuracy. Bg7 was best. } (11... Bg7 12. Rc1 O-O 13. g3 Ng6 14. c3 Bh3 15. cxd4 g4 16. Ne1 Nxd4 17. Bxd4 cxd4 18. Ng2) 12. g3?! { (-1.27 → -1.95) Inaccuracy. Bc1 was best. } (12. Bc1) 12... Nh3+ 13. Kg2 Bg7 14. Re1?! { (-1.95 → -2.89) Inaccuracy. Bd5 was best. } (14. Bd5 Be6 15. Rb1 Qd7 16. Qe2 O-O-O 17. Bxe6 Qxe6 18. Qb5 a6 19. Qb6 d5 20. bxc5 dxe4) 14... h4 15. Nb3 Ne5 16. Nxe5 Bxe5 17. Bb5+ Bd7?! { (-3.47 → -2.21) Inaccuracy. Kf8 was best. } (17... Kf8 18. bxc5 dxc5 19. Rh1 b6 20. Rf1 g4 21. Nd2 Ng5 22. Bc1 Qf6 23. Be2 Qh6 24. Rh1) 18. Qd3?! { (-2.21 → -3.18) Inaccuracy. Bxd7+ was best. } (18. Bxd7+ Qxd7) 18... g4? { (-3.18 → -1.53) Mistake. hxg3 was best. } (18... hxg3 19. fxg3 Nf2 20. Qe2 Ng4 21. Qxg4 Bxb5 22. a4 Bd7 23. Qe2 Qe6 24. Qf2 Rc8 25. Kg1) 19. bxc5 Rd8 20. Nxd4?! { (-0.89 → -1.52) Inaccuracy. Bxd4 was best. } (20. Bxd4 Qf6) 20... Kf8?? { (-1.52 → 1.64) Blunder. Qf6 was best. } (20... Qf6 21. Nf5 Bxb2 22. Rad1 Ng5 23. e5 Bxe5 24. Qxd6 Qxd6 25. Nxd6+ Kf8 26. Rxe5 h3+ 27. Kh1) 21. Nf5? { (1.64 → 0.38) Mistake. Bxd7 was best. } (21. Bxd7 Qxd7 22. cxd6 Ng5 23. Bc3 Qc8 24. Bd2 Rh5 25. Rad1 h3+ 26. Kh1 Bxd6 27. Nf5 Nxe4) 21... Bxf5 22. cxd6?? { (0.35 → -3.25) Blunder. exf5 was best. } (22. exf5 hxg3) 22... Qf6?? { (-3.25 → 0.53) Blunder. Rxd6 was best. } (22... Rxd6 23. exf5 Bxb2 24. Rxe7 Rxd3 25. Bxd3 Kxe7 26. Rb1 Bd4 27. Rxb7+ Kf6 28. f4 Re8 29. Bc4) 23. Bxe5 Qxe5 24. exf5 Qxd6?? { (0.44 → 2.78) Blunder. Qc5 was best. } (24... Qc5) 25. Re8+ Kg7 26. Rxh8 Qxd3 27. Bxd3 Rxh8 28. Be4?? { (2.98 → 0.73) Blunder. Rb1 was best. } (28. Rb1 Kf6 29. Rb4 Ng5 30. gxh4 Rxh4 31. Kg3 Rh3+ 32. Kxg4 Rxh2 33. Kg3 Rh3+ 34. Kg2 Rf3) 28... Kf6?! { (0.73 → 1.45) Inaccuracy. hxg3 was best. } (28... hxg3) 29. f3? { (1.45 → 0.00) Mistake. f4 was best. } (29. f4 Rd8 30. Bd3 Re8 31. Rf1 Kg7 32. f6+ Kh6 33. a4 Re3 34. a5 Kh5 35. Rd1 Rf3) 29... Ng5 30. Bxb7 Nxf3 31. Bxf3 h3+? { (0.06 → 1.58) Mistake. gxf3+ was best. } (31... gxf3+ 32. Kxf3 hxg3 33. hxg3 Rc8 34. Rc1 Rc4 35. Ke3 Kxf5 36. Kd3 Rg4 37. Rf1+ Ke6 38. Rf3) 32. Kf2 gxf3 33. g4? { (1.36 → 0.00) Mistake. c4 was best. } (33. c4 Kxf5 34. c5 Rb8 35. Ra2 Ke6 36. Rc2 Kd7 37. Kxf3 Rb3+ 38. Kg4 Rxa3 39. Kxh3 Ra6) 33... Rc8 34. Rc1 Rc3 35. Kg3 a5 36. Ra1 Kg5 37. Kxh3?? { (-0.10 → -2.92) Blunder. Rd1 was best. } (37. Rd1 f2+ 38. Kxf2 Rxc2+ 39. Kf3 Rxh2 40. f6 Kg6 41. Rd5 a4 42. Kg3 Ra2 43. Kxh3 Rxa3+) 37... f6?? { (-2.92 → -0.04) Blunder. Kf4 was best. } (37... Kf4) 38. Rf1?? { (-0.04 → -3.00) Blunder. Kg3 was best. } (38. Kg3 f2+ 39. Kg2 Kxg4 40. Rc1 Kxf5 41. Kxf2 Ke4 42. h4 f5 43. h5 Rh3 44. c4 Rxh5) 38... Kf4 39. Rc1?? { (-2.87 → Mate in 2) Checkmate is now unavoidable. Kh4 was best. } (39. Kh4 Rxc2 40. h3 Rh2 41. Rc1 f2 42. a4 Kf3 43. Ra1 Kg2 44. Kh5 Rh1 45. Ra2 Rxh3+) 39... Rc8 40. g5 fxg5 41. f6 g4+ 42. Kh4 Rh8# { Black wins. } 0-1